Rod-securing means



B4 WILLISTON ET AL ROD S ECUR I NG MEANS Filed June 2, 1921 6 ain]? W WA. fwd

' release duly ll, ieaa stat meant BELVIN '1. WINSTON, 0F SOMERVILLE,MASSACHUSETTS, AND HOWARD E. EDDY, OF EAST ORANGE, NEW JERSEY, ASSIGNGRS T0 MANNING, MAXWELLde MOQRE, ING, OF NEW YURK, N. Y, A GQWGRATIUN01F HEWJ'MSEY.

WWSEGUMNG MEANS.

Application filed June a, 1921. serial Ito. 417M148.

To all whom it may concern:

Be it known that we, BEnvm T; li 'nnmts- TON and Howann E. EDDY,citizens of the United States of America, and residents of Somervilleand East Orange, in the counties of Middlesex and Essex and States ofMassachusetts and New Jersey, respectively, have invented new and usefulImprovements in Rod-Securing Means, of which the following is aspecification.

This invention relates to meanszwhereby associated mechanical parts maybe secured together in fixed relation and is especially directed to theprovision of means whereby the end of a torsion rodmay be fastened toanother part rotatable therewith.

When for example, a torsion rod or shaft and heavy vibrations suchdifiiulty in pro viding a proper connection between the parts is greatlyincreased. The present invention may be considered to be an improvementupon that disclosed in the patent to Williston, No. 1,121,962, December22, 19141.1 In the patented device, the shaft or red is provided with asquared extremity engageable with a square opening in the associatedpart and while very efiicient for the desired purpose under ordinarycircumstances, it is found that the parts have a tendency to becomeloose when subjected to extensive and long continued vibration.

The present invention has for its object the provision of attachingmeans whereby such a torsion rod may be connected to its associated partin a firm and secure manner and by the use of simple devices soconstructed and arranged as-to be substantially unafiected by vibrationsor rapidly varying stresses.

As one means of carrying the above object into effect, the arrangementillustrated in the accompanyingdrawings may be employed, and in whichdrawingsigure 1 is a side elevation of the end portlonof a torsion rodsecured to one element of a universal joint by the. means forming thesubject matter of this application;

Figure 2 is a bottom plan view of the device as indicated at Fig. 1.;

Figure 3 is a longitudinal cross section on a line such as ab of Fig. 2;and

Figure t is a transverse cross section on 'the'line c0l of Fig, 3.

A shaft or torsion rod is indicated at 1, it being understood that suchshaft may be of any desired length, a fragmentary portion only beingindicated herein. The end of this shaft is externally screw-threaded asindicated at 2, such screw-threaded portion engaging within aninternally screw threads opening 3 in the associated part 4, such partbeing illustrated herein as com stituting an element of a universal'oint, theother elements of such joint not eing illustrated. The part 4-is provided with a slot 5, at one side thereof, such slot extendinglongitudinally of the screw-threaded opening in suchpartand'intersecting the same. The part 4 is alsc provided with anopening 6 which extends transversely across the screwthreaded openingtherein and at that side of the axis of such openin at which theaforesaid slot is located. he screw-threaded portion of therod 1 isprovided with a groove or a notch 7 which aligns with the opening 6 whensuch rod has been properly engaged with the threaded opening in thepart- 4. This groove or notch provides a. passage transversely acrossthe rod 1 with which engages a bolt 8, such bolt passing through theopening 6 in the part 4. The bolt 8 is provided with a head 9 at one endand is screw'-thread'ed at its opposite end for engagement bye nut 10.In accordance with the preferred mode of assembling the parts, the rod 1will first be screwed into the threaded opening 3 in the part 4 and thenthe transverse opening 6 will be drilled through the art 4:, the notchor groove 7 in the rod 1 t us being simultaneously formed, assuring itsalignment 7 with the adjacent parts of the opening 6. v The bolt 8 isnow inserted into opening 6,

passing through the notch ,7 and engaging the wall thereof, and the nut10 is now placed upon the end of the bolt and tightened. This serves todraw the slotted portion of the part 4 together, thereby pinching thewalls of the threaded opening tightly against the externalthreads of therod 1, thus serving in a very effective manner to secure the partstogether. 8 also, by reason of its engagement with the wall of the notch7, serves in a positive manner to prevent rotation of the rod 1.relative to the part 4. The parts 1 and 4 are thus secured together in avery firm and efiicient. manner, and there is little tendency for theparts to' become'loose when subjected to rapid stress and vibration,even though the nut 10' should'be partially unscrewed.

Having thus described the invention in a preferred embodiment of thesame, togetherwith the manner of associating the various parts concernedtherein, what we The bolt claim and desire to secure by Letters Patentof the United States is:

A device of the class described comprising a member constituting anelement of a universal joint, said member having a part provided with aninternally threaded circular bore and having a slot extending from thebore to its outer surface, the slot extendin longitudinally of the bore,a torsion rod having a threaded extremity engaging the threaded bore insaid part. and a binding bolt extending through said part transverselyto the slot therein for drawing the opposite walls of the slot togetherto bind the rod in the threaded bore, said binding bolt engaging a notchin the circumferential surface of the threaded end of the rod positivelyto prevent rotation of the latter relatively to the part having thethreaded bore. Signed by us at Boston, Massachusetts, this 31st day ofMay, 1921, and at New York, New York, this fourteenth day of May, 1921.

BELVIN T. WILLISTON. HOWARD E. EDDY.

